查询词典 finite continued fraction

Using volatile acid and alkali to regulate the pH of pressed juice from bamboo shell,saltless Fraction Ⅰand Fraction Ⅱwere got separately.the residue of squeezed banboo shell was used as paper making material and medium for cultivation mushroom.

采用挥发性酸和碱调节鲜笋壳压榨液 pH值，分别获得无盐Fraction Ⅰ和fraction Ⅱ；其压榨后的蒲渣作为造纸原料和栽培食用菌的基质；对分离Fraction Ⅰ和Fraction Ⅱ后的汁液，加入Fe2 +并超滤浓缩，经硫酸铵盐析和丙酮分级后，进行CM 2 2纤维素离子交换柱层析，以 pH5 。2乙酸钠分级洗脱，获得RZ为 3 。0以上的高纯竹笋过氧氧化物酶。

The distributions of the volume fraction of the particle phase in the circular cross section were related to the mainstream velocity, and the volume fraction values increased downwards and sidewards with reducing mainstream velocity.

水平井圆截面上颗粒相体积分数分布特征主要与主流速度有关，随着速度降低，体积分数分布值向下向两侧增大。

The ionic conductivity of polymer electrolytes equaled 3.56×10-4 S·cm-1 when the mass fraction of silicotungstate lithium was 8.5% in polymer film. The lithium ions transference number, which was measured by the method of combination of AC impedance with DC polarization, decreased with increase of the mass fraction of Li4SiW12O40 in the porous polymer film.

为了提高聚合物电解质的Li+离子迁移数，人们设法增大阴离子的体积[6~8]使其难以迁移而达到提高Li+离子迁移数的目的，很少应用含有多个Li+离子的锂盐做聚合物电解质的Li+离子载体。

The resistivity of filled skutterudites increases with the increase of the filling fraction. It originated from the decrease of carrier concentration in the skutterudite for the samples with high filling fraction and also the difference of the content of Fe Sb〓 and Sb in the samples.

填充型方钴矿材料的电阻率随填充率的提高而增大，这一方面是因为镧的引入使材料的载流子浓度降低，另一方面低填充率的样品中的低电阻率还与样品中的FeSb〓和Sb杂质的存在有关。

The results of XRD indicated that the addition of lanthanum in skutterudite could enhance the formation of skutterudite during the synthesis process. The content of skutterudite increases with the increase of the filling fraction in 〓. The lattice parameter of filled skutterudite increases with the increase of lanthanum filling fraction. It is caused by the deformation of Sb〓 ring arising from the "rattling"of the filling atoms in the voids in skutterudite.

对不同填充率方钴矿La〓Fe〓CoSb〓材料的XRD研究发现，镧元素的引入可以促进方钴矿相的合成，相同条件下合成的方钴矿的纯度随镧填充率的增大而提高，材料的晶胞参数随镧填充率的提高而增大，这是填充原子在方钴矿晶体的的孔隙内震颤和晶胞内Sb〓四边形发生扭曲变形所致。

The sulfidic sulfur content in the residue fraction decreased and the thiophenic sulfur content increased with the heaviness of residue fraction.

脱硫受多种因素的影响[7]，如催化剂性能、工艺条件等，而且硫在渣油中的存在类型和分布也严重影响到硫的脱除效果。

Hypoxic-ischemic encephalopathy experimental grouping: Sixteen successful C57/BL6J mice models, aged 7 days, were randomized into 2 groups: experimental group (n =8), following ligation of right common carotid artery, mice were placed in the closed container containing 0.08 volume fraction of oxygen and 0.92 volume fraction of Nitrogen gas, and taken out 1.5 hours later; 3 μL ESCs were injected into the right cerebral ventricle at about 1 week, and control group (n =8), in which, the same amount of PBS was injected into the right cerebral ventricle.③ At 12 weeks after transplantation, the survival and migration of induced ESCs labeled by Lac-Z in the spinal cord and brain were observed by zymologic method.

缺氧缺血性脑病实验分组：将造模成功的鼠龄7 d的C57/BL6J16只小鼠随机分为2组：实验组8只，结扎右侧颈总动脉后将小鼠置入含体积分数0.08氧气和体积分数0.92氮气的密闭容器内，1.5 h后取出；1周后在右侧脑室内注入3 μL诱导胚胎干细胞。

TA different mole fraction of the mass fraction of polymer in water were low.

不同TA摩尔分数的聚合物的质量分数均较其在纯水中低。

The experimental result showed that, the fraction oil depickling solvent technology has wide scope of material oil, and the sodium hydroxide amount used to drop 67~75%, emulsifies completely eliminates, the fraction oil loss drops 50~60%; The depickling solvent regenerative cycle use, doesn't have the waste lye to discharge, the environmental pollution is degraded greatly.

实验结果说明，馏分油脱酸剂技术具有适应原料范围宽，烧碱用量下降67%～75%，完全消除乳化，馏分油损失下降50%～60%；脱酸剂再生循环使用，无废碱液排放，环境污染大为降低等优点。

Data from TM images from the years1986,1993, 2000 and 2006 around Shenfu coalmine area were used to exbract normalized difference vegetatio n index by the software ERDAS firstly, then using spatial modeler of ERDAS compute vegetation fr action and classify through unsuperˉ vised classification.Finally,we get vegetation fraction mapping of c oalmine within 1986～2006.It clearly inˉ dicate that the coalmine vegetation fraction increase in whole but d ecrease in some colemine district.

通过利用榆林市神府矿区1986、1993、2000、2006年四景同期TM影像数据，使用ERDAS软件首先提取植被指数，根据像元二分法利用ERDAS的建模工具Spatial Modeler计算出矿区的植被覆盖度，利用非监督分类方法对矿区的植被覆盖度进行分类、赋色，最后得出矿区1986～2006年的植被覆盖度分类图，定量的说明了矿区20 a年间的植被覆盖变化情况：植被覆盖度整体提高，在局部矿区则有所降低。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&